/* ==========================================================
   Free Tools from Adovasio
   A dependency-free portal theme shared by every tool page.
   ========================================================== */

:root {
    color-scheme: dark;
    --bg: #05080c;
    --bg-soft: #080d14;
    --surface: #0b121b;
    --surface-raised: #101a26;
    --surface-hover: #142131;
    --text: #f4f7fb;
    --text-soft: #c7d0dc;
    --muted: #8e9aaa;
    --line: rgba(207, 225, 248, 0.12);
    --line-strong: rgba(207, 225, 248, 0.22);
    --blue: #4aa3ff;
    --blue-bright: #73c7ff;
    --blue-deep: #1769d2;
    --success: #5ee0ba;
    --error: #ff8d9b;
    --warning: #f2c96f;
    --shadow: 0 26px 80px rgba(0, 0, 0, 0.34);
    --shell: 1200px;
    --header-height: 76px;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --ease: cubic-bezier(0.2, 0.75, 0.25, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scrollbar-color: #2a3f58 var(--bg);
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 18% -8%, rgba(22, 105, 210, 0.14), transparent 32rem),
        var(--bg);
    color: var(--text);
    font-family: "Manrope", "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.menu-open {
    overflow: hidden;
}

main {
    display: block;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

button,
input,
select {
    font: inherit;
}

button {
    border: 0;
}

::selection {
    background: rgba(74, 163, 255, 0.32);
    color: #ffffff;
}

:focus-visible {
    outline: 3px solid var(--blue-bright);
    outline-offset: 4px;
}

.shell {
    width: min(calc(100% - 48px), var(--shell));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 16px;
    border-radius: 8px;
    background: #ffffff;
    color: #07101b;
    font-weight: 700;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform 160ms ease;
}

.skip-link:focus {
    transform: translateY(0);
}

.eyebrow {
    margin: 0 0 18px;
    color: var(--blue-bright);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    line-height: 1.2;
    text-transform: uppercase;
}

.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 750;
    letter-spacing: 0.01em;
    line-height: 1;
    text-decoration: none;
    transition:
        background-color 220ms ease,
        border-color 220ms ease,
        color 220ms ease,
        transform 220ms var(--ease),
        box-shadow 220ms ease;
}

.button--primary {
    background: #1769d2;
    color: #ffffff;
    box-shadow: 0 12px 30px rgba(23, 105, 210, 0.24);
}

.button--primary:hover {
    background: #1f73d9;
    box-shadow: 0 15px 36px rgba(23, 105, 210, 0.34);
    transform: translateY(-2px);
}

.arrow-link {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text-soft);
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
    transition: color 180ms ease;
}

.arrow-link svg {
    width: 18px;
    height: 18px;
    transition: transform 180ms var(--ease);
}

.arrow-link:hover {
    color: #ffffff;
}

.arrow-link:hover svg {
    transform: translate(2px, -2px);
}

/* Site header */

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    height: var(--header-height);
    border-bottom: 1px solid transparent;
    background: rgba(5, 8, 12, 0.6);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition:
        background-color 220ms ease,
        border-color 220ms ease,
        box-shadow 220ms ease;
}

.site-header.is-scrolled {
    border-color: var(--line);
    background: rgba(5, 8, 12, 0.88);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
}

.site-header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--text);
    text-decoration: none;
}

.brand__mark {
    width: 37px;
    height: 37px;
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    border: 1px solid rgba(115, 199, 255, 0.28);
    border-radius: 11px;
    background:
        linear-gradient(145deg, rgba(74, 163, 255, 0.19), rgba(74, 163, 255, 0.04)),
        rgba(9, 18, 28, 0.9);
    color: var(--blue-bright);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.brand__mark svg {
    width: 24px;
    height: 24px;
}

.brand__copy {
    display: grid;
    gap: 0;
    line-height: 1.04;
}

.brand__copy strong {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand__copy span {
    color: var(--muted);
    font-size: 0.66rem;
    font-weight: 750;
    letter-spacing: 0.17em;
    text-transform: uppercase;
}

.nav-panel,
.site-nav,
.site-nav__categories {
    display: flex;
    align-items: center;
}

.site-nav {
    gap: 6px;
}

.site-nav__categories {
    gap: 6px;
}

.site-nav__link,
.site-nav__company {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    padding: 9px 12px;
    border-radius: 9px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    transition:
        background-color 180ms ease,
        color 180ms ease;
}

.site-nav__link:hover,
.site-nav__link.is-active {
    background: rgba(255, 255, 255, 0.045);
    color: #ffffff;
}

.site-nav__link.is-active {
    box-shadow: inset 0 0 0 1px var(--line);
}

.site-nav__company {
    gap: 7px;
    margin-left: 8px;
    padding-inline: 14px;
    border: 1px solid var(--line);
    color: var(--text-soft);
}

.site-nav__company svg {
    width: 16px;
    height: 16px;
    color: var(--blue-bright);
    transition: transform 180ms var(--ease);
}

.site-nav__company:hover {
    border-color: rgba(115, 199, 255, 0.36);
    background: rgba(74, 163, 255, 0.08);
    color: #ffffff;
}

.site-nav__company:hover svg {
    transform: translate(2px, -2px);
}

.nav-toggle {
    width: 46px;
    height: 46px;
    display: none;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.035);
    color: var(--text);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    width: 19px;
    height: 1.5px;
    display: block;
    position: absolute;
    left: 50%;
    border-radius: 3px;
    background: currentColor;
    transform: translateX(-50%);
    transition:
        top 180ms ease,
        transform 180ms ease,
        opacity 180ms ease;
}

.nav-toggle span {
    top: 50%;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    left: 50%;
}

.nav-toggle span::before {
    top: -6px;
}

.nav-toggle span::after {
    top: 6px;
}

.nav-toggle[aria-expanded="true"] span {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
}

/* Homepage hero */

.portal-hero {
    min-height: max(690px, calc(100svh - var(--header-height)));
    display: grid;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    isolation: isolate;
}

.portal-hero__grid {
    position: absolute;
    z-index: -3;
    inset: 0;
    opacity: 0.55;
    background-image:
        linear-gradient(rgba(136, 180, 230, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(136, 180, 230, 0.055) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: linear-gradient(to bottom, black 15%, transparent 94%);
}

.portal-hero__grid::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--bg) 0%, transparent 22%, transparent 78%, var(--bg) 100%);
}

.portal-hero__glow {
    position: absolute;
    z-index: -2;
    border-radius: 50%;
    filter: blur(1px);
    pointer-events: none;
}

.portal-hero__glow--one {
    width: 670px;
    height: 670px;
    top: -270px;
    right: -160px;
    background: radial-gradient(circle, rgba(35, 121, 220, 0.23), transparent 68%);
}

.portal-hero__glow--two {
    width: 560px;
    height: 560px;
    bottom: -360px;
    left: 10%;
    background: radial-gradient(circle, rgba(77, 82, 230, 0.14), transparent 70%);
}

.portal-hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.65fr);
    align-items: center;
    gap: clamp(40px, 7vw, 100px);
    padding-block: clamp(88px, 12vh, 150px) 120px;
}

.portal-hero__copy {
    max-width: 800px;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 28px;
    color: var(--text-soft);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero-kicker > span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 5px rgba(94, 224, 186, 0.1);
}

.portal-hero h1 {
    margin: 0;
    font-size: clamp(4rem, 7.8vw, 7.6rem);
    font-weight: 800;
    letter-spacing: -0.07em;
    line-height: 0.92;
}

.portal-hero h1 > span {
    display: block;
}

.portal-hero__accent {
    margin-top: 0.12em;
    background: linear-gradient(100deg, #6ebaff 0%, #f4f7fb 62%, #a5b4fc 100%);
    background-clip: text;
    color: transparent;
    -webkit-background-clip: text;
}

.portal-hero__lead {
    max-width: 650px;
    margin: 30px 0 0;
    color: var(--text-soft);
    font-size: clamp(1.05rem, 1.55vw, 1.28rem);
    line-height: 1.65;
}

.portal-hero__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 22px;
    margin-top: 36px;
}

.portal-hero__signal {
    width: min(100%, 440px);
    aspect-ratio: 1;
    justify-self: end;
    position: relative;
    border: 1px solid rgba(155, 202, 255, 0.08);
    border-radius: 50%;
    background:
        radial-gradient(circle at center, rgba(74, 163, 255, 0.08), transparent 56%),
        rgba(7, 13, 20, 0.22);
    box-shadow:
        inset 0 0 60px rgba(74, 163, 255, 0.04),
        0 40px 120px rgba(0, 0, 0, 0.2);
}

.signal-orbit {
    position: absolute;
    border: 1px solid rgba(136, 184, 236, 0.15);
    border-radius: 50%;
}

.signal-orbit--outer {
    inset: 11%;
}

.signal-orbit--inner {
    inset: 28%;
    border-style: dashed;
}

.signal-core {
    width: 112px;
    height: 112px;
    display: grid;
    position: absolute;
    top: 50%;
    left: 50%;
    place-items: center;
    border: 1px solid rgba(115, 199, 255, 0.32);
    border-radius: 30px;
    background:
        linear-gradient(145deg, rgba(74, 163, 255, 0.16), rgba(18, 27, 42, 0.76)),
        var(--surface);
    color: var(--blue-bright);
    box-shadow:
        0 24px 65px rgba(0, 0, 0, 0.44),
        inset 0 1px rgba(255, 255, 255, 0.08),
        0 0 80px rgba(74, 163, 255, 0.09);
    transform: translate(-50%, -50%) rotate(-5deg);
}

.signal-core svg {
    width: 62px;
    height: 62px;
}

.signal-node {
    width: 58px;
    height: 58px;
    display: grid;
    position: absolute;
    place-items: center;
    border: 1px solid var(--line-strong);
    border-radius: 17px;
    background: rgba(12, 22, 33, 0.92);
    color: var(--blue-bright);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.32);
}

.signal-node svg {
    width: 30px;
    height: 30px;
}

.signal-node--files {
    top: 10%;
    left: 47%;
    color: #b9a5ff;
    transform: rotate(5deg);
}

.signal-node--pdf {
    top: 50%;
    right: 5%;
    color: #6ce1ec;
    transform: rotate(5deg);
}

.signal-node--network {
    bottom: 8%;
    left: 18%;
    color: #6fb4ff;
    transform: rotate(-5deg);
}

.signal-label {
    position: absolute;
    padding: 7px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(5, 8, 12, 0.8);
    color: var(--muted);
    font-size: 0.61rem;
    font-weight: 750;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.signal-label--files {
    top: 27%;
    left: 1%;
}

.signal-label--network {
    right: 7%;
    bottom: 15%;
}

.hero-scroll {
    display: flex;
    position: absolute;
    bottom: 32px;
    left: 50%;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-decoration: none;
    text-transform: uppercase;
    transform: translateX(-50%);
}

.hero-scroll i {
    width: 1px;
    height: 28px;
    display: block;
    position: relative;
    overflow: hidden;
    background: var(--line-strong);
}

.hero-scroll i::after {
    content: "";
    width: 100%;
    height: 12px;
    position: absolute;
    top: -12px;
    left: 0;
    background: var(--blue-bright);
    animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
    0% {
        transform: translateY(0);
    }
    65%,
    100% {
        transform: translateY(42px);
    }
}

/* Directory */

.tool-directory {
    scroll-margin-top: var(--header-height);
    padding-block: clamp(90px, 12vw, 150px);
    background:
        radial-gradient(circle at 88% 24%, rgba(31, 106, 196, 0.09), transparent 28rem),
        var(--bg-soft);
}

.catalog {
    min-height: 240px;
}

.catalog-loading,
.catalog-message {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0;
    border: 1px dashed var(--line);
    border-radius: var(--radius-md);
    color: var(--muted);
    font-size: 0.88rem;
}

.catalog-loading span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--blue);
    box-shadow: 0 0 0 0 rgba(74, 163, 255, 0.5);
    animation: loading-pulse 1.7s ease-out infinite;
}

@keyframes loading-pulse {
    70%,
    100% {
        box-shadow: 0 0 0 10px rgba(74, 163, 255, 0);
    }
}

.tool-category {
    scroll-margin-top: calc(var(--header-height) + 32px);
}

.tool-category + .tool-category {
    margin-top: clamp(110px, 14vw, 180px);
    padding-top: clamp(80px, 10vw, 120px);
    border-top: 1px solid var(--line);
}

.section-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.62fr);
    gap: 28px 60px;
    align-items: end;
    margin-bottom: 40px;
}

.section-heading .eyebrow {
    grid-column: 1 / -1;
    margin-bottom: -8px;
}

.section-heading h3 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.65rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1.02;
}

.section-heading > p:last-child {
    max-width: 470px;
    justify-self: end;
    margin: 0;
    color: var(--muted);
}

.featured-grid,
.network-grid {
    display: grid;
    gap: 18px;
}

.featured-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.network-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tool-card {
    --card-accent: #4aa3ff;
    --card-accent-rgb: 74, 163, 255;
    display: flex;
    position: relative;
    overflow: hidden;
    flex-direction: column;
    border: 1px solid var(--line);
    background:
        linear-gradient(145deg, rgba(var(--card-accent-rgb), 0.09), transparent 42%),
        var(--surface);
    color: var(--text);
    text-decoration: none;
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
    isolation: isolate;
    transition:
        border-color 260ms ease,
        background-color 260ms ease,
        transform 260ms var(--ease),
        box-shadow 260ms ease;
}

.tool-card::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: -180px;
    right: -180px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--card-accent-rgb), 0.19), transparent 68%);
    opacity: 0.5;
    transition: opacity 260ms ease, transform 400ms var(--ease);
}

.tool-card:hover {
    border-color: rgba(var(--card-accent-rgb), 0.38);
    background-color: var(--surface-raised);
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.25),
        inset 0 1px rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.tool-card:hover::before {
    opacity: 0.9;
    transform: translate(-12px, 12px) scale(1.06);
}

.tool-card--featured {
    min-height: 450px;
    padding: clamp(28px, 4vw, 44px);
    border-radius: var(--radius-lg);
}

.tool-card--compact {
    min-height: 315px;
    padding: 28px;
    border-radius: var(--radius-md);
}

.tool-card--violet {
    --card-accent: #a78bfa;
    --card-accent-rgb: 167, 139, 250;
}

.tool-card--cyan {
    --card-accent: #67e8f9;
    --card-accent-rgb: 103, 232, 249;
}

.tool-card--indigo {
    --card-accent: #8b9cff;
    --card-accent-rgb: 139, 156, 255;
}

.tool-card--teal {
    --card-accent: #5ee0ba;
    --card-accent-rgb: 94, 224, 186;
}

.tool-card--amber {
    --card-accent: #f2c96f;
    --card-accent-rgb: 242, 201, 111;
}

.tool-card--rose {
    --card-accent: #ff8d9b;
    --card-accent-rgb: 255, 141, 155;
}

.tool-card__top {
    display: flex;
    position: relative;
    z-index: 1;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.tool-card__icon-shell {
    width: 58px;
    height: 58px;
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    border: 1px solid rgba(var(--card-accent-rgb), 0.24);
    border-radius: 17px;
    background: rgba(var(--card-accent-rgb), 0.09);
    color: var(--card-accent);
}

.tool-card__icon {
    width: 31px;
    height: 31px;
}

.tool-card__meta {
    color: var(--muted);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.tool-card h4 {
    position: relative;
    z-index: 1;
    margin: auto 0 0;
    font-size: clamp(1.65rem, 3vw, 2.85rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.04;
}

.tool-card--compact h4 {
    margin-top: 46px;
    font-size: 1.52rem;
}

.tool-card > p {
    max-width: 480px;
    position: relative;
    z-index: 1;
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.tool-card__footer {
    display: flex;
    position: relative;
    z-index: 1;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-top: 30px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    color: var(--text-soft);
    font-size: 0.78rem;
    font-weight: 800;
}

.tool-card__arrow {
    width: 22px;
    height: 22px;
    color: var(--card-accent);
    transition: transform 220ms var(--ease);
}

.tool-card:hover .tool-card__arrow {
    transform: translate(3px, -3px);
}

.tool-card--compact:hover .tool-card__arrow {
    transform: translateX(4px);
}

.tool-card__art {
    width: 230px;
    height: 230px;
    display: grid;
    position: absolute;
    z-index: 0;
    top: 50%;
    right: -38px;
    place-items: center;
    border: 1px solid rgba(var(--card-accent-rgb), 0.12);
    border-radius: 50%;
    color: var(--card-accent);
    opacity: 0.12;
    transform: translateY(-57%) rotate(8deg);
    transition:
        opacity 300ms ease,
        transform 500ms var(--ease);
}

.tool-card__art::before,
.tool-card__art::after {
    content: "";
    position: absolute;
    border: 1px solid rgba(var(--card-accent-rgb), 0.28);
    border-radius: 50%;
}

.tool-card__art::before {
    inset: 28px;
}

.tool-card__art::after {
    inset: 62px;
    border-style: dashed;
}

.tool-card__watermark {
    width: 90px;
    height: 90px;
}

.tool-card:hover .tool-card__art {
    opacity: 0.19;
    transform: translate(-10px, -57%) rotate(0);
}

/* Individual network tool pages */

.tool-main {
    min-height: 720px;
    padding-block: clamp(62px, 8vw, 105px) clamp(100px, 12vw, 150px);
    background:
        radial-gradient(circle at 82% 8%, rgba(35, 121, 220, 0.13), transparent 30rem),
        linear-gradient(180deg, rgba(13, 24, 36, 0.35), transparent 30rem);
}

.tool-breadcrumb {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 26px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 750;
    text-decoration: none;
}

.tool-breadcrumb svg {
    width: 17px;
    height: 17px;
    transform: rotate(180deg);
    transition: transform 180ms var(--ease);
}

.tool-breadcrumb:hover {
    color: var(--text);
}

.tool-breadcrumb:hover svg {
    transform: rotate(180deg) translateX(3px);
}

.tool-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.62fr);
    gap: 18px;
    align-items: stretch;
}

.diagnostic-card,
.tool-guide {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(145deg, rgba(74, 163, 255, 0.055), transparent 42%),
        var(--surface);
    box-shadow: var(--shadow);
}

.diagnostic-card {
    min-height: 540px;
    padding: clamp(28px, 5vw, 56px);
}

.tool-heading {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 22px;
    align-items: center;
    padding-bottom: 34px;
    border-bottom: 1px solid var(--line);
}

.tool-heading__icon {
    width: 66px;
    height: 66px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(115, 199, 255, 0.24);
    border-radius: 19px;
    background: rgba(74, 163, 255, 0.08);
    color: var(--blue-bright);
}

.tool-heading__icon svg {
    width: 36px;
    height: 36px;
}

.tool-heading h1 {
    margin: 0;
    font-size: clamp(2rem, 4.5vw, 3.45rem);
    font-weight: 800;
    letter-spacing: -0.055em;
    line-height: 1;
}

.tool-heading .subtitle {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 0.94rem;
    line-height: 1.55;
}

.tool-interface {
    padding-top: 34px;
}

.input-group {
    display: flex;
    align-items: end;
    gap: 12px;
    margin: 0;
}

.field {
    min-width: 0;
    display: grid;
    flex: 1 1 0;
    gap: 9px;
}

.field--select {
    flex: 0 1 155px;
}

.field--port {
    flex: 0 1 150px;
}

.field label {
    color: var(--text-soft);
    font-size: 0.71rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

input,
select {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid #596575;
    border-radius: var(--radius-sm);
    background: #070c12;
    color: var(--text);
    font-size: 0.91rem;
    transition:
        border-color 180ms ease,
        background-color 180ms ease,
        box-shadow 180ms ease;
}

input::placeholder {
    color: #8995a5;
}

input:hover,
select:hover {
    border-color: #657588;
}

input:focus,
select:focus {
    border-color: var(--blue);
    outline: 0;
    background: #09111a;
    box-shadow: 0 0 0 4px rgba(74, 163, 255, 0.11);
}

.tool-button {
    min-height: 50px;
    flex: 0 0 auto;
    padding: 12px 20px;
    cursor: pointer;
    border: 1px solid #2679d8;
    border-radius: var(--radius-sm);
    background: #1769d2;
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 800;
    transition:
        background-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms var(--ease);
}

.tool-button:hover {
    background: #1f73d9;
    box-shadow: 0 10px 26px rgba(23, 105, 210, 0.28);
    transform: translateY(-1px);
}

.tool-button:active {
    transform: translateY(0);
}

.tool-button:disabled {
    cursor: wait;
    opacity: 0.66;
}

.tool-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status {
    min-height: 24px;
    margin-top: 22px;
    padding-left: 19px;
    position: relative;
    color: var(--muted);
    font-size: 0.82rem;
}

.status::before {
    content: "";
    width: 7px;
    height: 7px;
    position: absolute;
    top: 0.58em;
    left: 0;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 10%, transparent);
}

.status.loading {
    color: var(--blue-bright);
}

.status.loading::before {
    animation: status-pulse 1.2s ease-in-out infinite;
}

.status.success {
    color: var(--success);
}

.status.error {
    color: var(--error);
}

@keyframes status-pulse {
    50% {
        opacity: 0.35;
        transform: scale(0.8);
    }
}

.result {
    max-height: 430px;
    margin-top: 20px;
    padding: 20px;
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #060a0f;
    color: #b8c6d8;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.78rem;
    line-height: 1.65;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

.hidden {
    display: none !important;
}

.tool-guide {
    display: flex;
    flex-direction: column;
    padding: 34px;
}

.tool-guide__label {
    color: var(--blue-bright);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.tool-guide h2 {
    margin: 30px 0 14px;
    font-size: 1.45rem;
    letter-spacing: -0.035em;
    line-height: 1.2;
}

.tool-guide p {
    margin: 0;
    color: var(--muted);
    font-size: 0.87rem;
}

.tool-guide p + p {
    margin-top: 18px;
}

.tool-guide__back {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: auto;
    padding-top: 28px;
    border-top: 1px solid var(--line);
    color: var(--text-soft);
    font-size: 0.76rem;
    font-weight: 800;
    text-decoration: none;
}

.tool-guide__back svg {
    width: 18px;
    height: 18px;
    color: var(--blue-bright);
    transition: transform 180ms var(--ease);
}

.tool-guide__back:hover {
    color: #ffffff;
}

.tool-guide__back:hover svg {
    transform: translateX(4px);
}

/* Progressive reveal */

.reveal-ready [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition:
        opacity 650ms var(--ease),
        transform 650ms var(--ease);
}

.reveal-ready [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-ready [data-reveal]:focus-within {
    opacity: 1;
    transform: translateY(0);
    transition-duration: 0.01ms;
}

.reveal-ready .featured-grid [data-reveal]:nth-child(2),
.reveal-ready .network-grid [data-reveal]:nth-child(2) {
    transition-delay: 70ms;
}

.reveal-ready .network-grid [data-reveal]:nth-child(3) {
    transition-delay: 140ms;
}

.reveal-ready .network-grid [data-reveal]:nth-child(4) {
    transition-delay: 210ms;
}

.reveal-ready .network-grid [data-reveal]:nth-child(5) {
    transition-delay: 280ms;
}

/* Responsive */

@media (max-width: 1050px) {
    .portal-hero__inner {
        grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.62fr);
        gap: 32px;
    }

    .portal-hero__signal {
        max-width: 360px;
    }

    .network-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tool-layout {
        grid-template-columns: minmax(0, 1fr) 300px;
    }
}

@media (max-width: 900px) {
    .tool-layout {
        grid-template-columns: 1fr;
    }

    .tool-guide {
        min-height: 360px;
    }
}

@media (max-width: 800px) {
    :root {
        --header-height: 70px;
    }

    .shell {
        width: min(calc(100% - 32px), var(--shell));
    }

    .js .nav-toggle {
        display: block;
    }

    .js .nav-panel {
        width: calc(100% - 32px);
        display: block;
        position: fixed;
        top: calc(var(--header-height) + 8px);
        left: 16px;
        padding: 12px;
        border: 1px solid var(--line-strong);
        border-radius: 18px;
        background: rgba(8, 13, 20, 0.98);
        box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
    }

    .no-js .site-header {
        height: auto;
        position: relative;
    }

    .no-js .site-header__inner {
        height: auto;
        align-items: stretch;
        flex-direction: column;
        padding-block: 14px;
    }

    .no-js .brand {
        align-self: flex-start;
    }

    .no-js .nav-panel {
        width: 100%;
    }

    .js .nav-panel {
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px) scale(0.98);
        transform-origin: top;
        transition:
            visibility 0s linear 180ms,
            opacity 180ms ease,
            transform 180ms var(--ease);
    }

    .js .nav-panel.is-open {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0) scale(1);
        transition-delay: 0s;
    }

    .site-nav,
    .site-nav__categories {
        display: grid;
        gap: 3px;
    }

    .site-nav__link,
    .site-nav__company {
        width: 100%;
        min-height: 48px;
        justify-content: space-between;
        padding-inline: 14px;
    }

    .site-nav__company {
        margin: 8px 0 0;
    }

    .portal-hero {
        min-height: auto;
    }

    .portal-hero__inner {
        grid-template-columns: 1fr;
        gap: 66px;
        padding-block: 90px 130px;
    }

    .portal-hero__copy {
        max-width: 680px;
    }

    .portal-hero h1 {
        font-size: clamp(3.5rem, 13vw, 6.2rem);
    }

    .portal-hero__signal {
        width: min(82vw, 380px);
        justify-self: center;
    }

    .hero-scroll {
        bottom: 26px;
    }

    .section-heading {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .section-heading > p:last-child {
        justify-self: start;
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }

    .tool-card--featured {
        min-height: 410px;
    }

}

@media (max-width: 620px) {
    .portal-hero__inner {
        padding-top: 70px;
    }

    .hero-kicker {
        align-items: flex-start;
        font-size: 0.65rem;
        line-height: 1.5;
    }

    .hero-kicker > span {
        margin-top: 0.36em;
    }

    .portal-hero h1 {
        font-size: clamp(3.3rem, 16.5vw, 5.4rem);
        line-height: 0.94;
    }

    .portal-hero__lead {
        margin-top: 24px;
        font-size: 1rem;
    }

    .portal-hero__actions {
        align-items: stretch;
        flex-direction: column;
        gap: 9px;
    }

    .portal-hero__actions .button,
    .portal-hero__actions .arrow-link {
        width: 100%;
        justify-content: center;
    }

    .portal-hero__signal {
        width: min(90vw, 350px);
    }

    .signal-label {
        display: none;
    }

    .tool-directory {
        padding-block: 84px;
    }

    .tool-category + .tool-category {
        margin-top: 90px;
        padding-top: 72px;
    }

    .network-grid {
        grid-template-columns: 1fr;
    }

    .tool-card--featured {
        min-height: 390px;
        padding: 26px;
        border-radius: 22px;
    }

    .tool-card--compact {
        min-height: 280px;
    }

    .tool-card__art {
        width: 180px;
        height: 180px;
        right: -55px;
    }

    .tool-card h4 {
        font-size: 2rem;
    }

    .tool-main {
        padding-top: 44px;
    }

    .diagnostic-card,
    .tool-guide {
        border-radius: 20px;
    }

    .diagnostic-card {
        min-height: 0;
        padding: 24px;
    }

    .tool-heading {
        grid-template-columns: 1fr;
        gap: 18px;
        padding-bottom: 28px;
    }

    .tool-heading__icon {
        width: 58px;
        height: 58px;
    }

    .input-group {
        align-items: stretch;
        flex-direction: column;
    }

    .field,
    .field--select,
    .field--port {
        flex-basis: auto;
    }

    .tool-button {
        width: 100%;
    }

    .tool-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .tool-guide {
        min-height: 330px;
        padding: 28px;
    }

}

@media (max-width: 390px) {
    .brand__copy strong {
        font-size: 0.88rem;
    }

    .portal-hero__signal {
        transform: scale(0.92);
    }

}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}